Shaping-machine.



;W. E. BIECKEN. SHAPING MACHQNE.

APPLICATION FILED NOV. 1. 1916.

I 1,251,578. I Patented Jan. 1, 1918 more especially to the shapingthereof while UNITED STATES PATENT ()FFECE.

WILLIAM E. RIECKEN, OF NEW YORK, N. Y., ASSIGNOR TO WESTERN ELECTRICCOM- PANY, INCORPORATED, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

SHAPING-MACHINE.

Specification of Letters ratent.

Patented Jan. 1, 1918.

, To (in whom it may concern:

Be it known that I, \Vnmmu E. Rlucxrm, a citizen of the llnited States,residing at New York, in the county of New York and State of New York,have inventgd certain new and useful Improvements in Shaping- Iachines,ofwhich the following is a full, 1 ear, concise, and exact description.

This invention relates to the shaping of parts of solid conductingmaterial, and

heated to facilitate working.

Heretofore, in the shaping of parts of solid conducting material, andmore especially metallic parts of but little mallcabil-. ity, as forexam le, parts made from silicon steel, considerab e breakage wasexperienced when the parts wereshaped cold. To over come this, it waspro to heat the parts. in furnaces, or the li e, and then take them toshaping machines; This arrangement was also found unsatisfactory, as theparts would cool considerably before they could be operated upon by themachines.- A n mher of has were alsonry before shaping coul becompleted; and even in such cases breakage was common, as the partswould often have oooledto such an extent as to break while bein operatedupon.

The-principal objects of t is invention are to overcome the abovedifiiculties, to successfully'shape solid conducting parts withoutbreakage, and to reduce the cost of shaping such parts; A second objectis to effect discont' uanooof the heating of the pal I; being operatedupon automatically through the performance of the shaping operation uponthe part being treated. Another object is to provide an attachment whichcan beused -.with electric welding machines of usual construction. Onefeature of the invention to aooom lish these objects, is the provision.of a mac ino' to heat such parts and also to shape them in the machinewhile in their heated condition.

Referring to the drawings illustrating one embodiment of the invention,Figure 1 is a side elevation partly in section of an attachment aplicable to electric welding ma chines, whi e Fig. 2 is a detailed viewof the die and former used, showing a part as shaped thereby.

The construction shown is particularly applicable to electric weldingmachines having heating t e upper and lower members relatively mo:-

- able to and from one another, and arranged tocarry the particularelectrodes it may be I lower member in the place designated for thelower electrode of the welding machine. Supporting electrodes 7 andSnre'provided and mounted upon the lower block 6. The electrode is shownmounted directly on the block 6 in conductive relation thereto, whilethe electrode 8 is so arated from the block.5

by insulation 9. n welding machines of the type with which thearrangement illustratcd is designed for use, the electric current isbrought to the upper and lower electrode olders whichv are used to holdthe blocks 5 and 6 respectively. In this situation ,a conductor 10 offlexible material extends from the upper block 5 to the electrode 8tocarry currc'nt thereto. If desired, the heating current could beconveyed directly to the electrodes 7 and 8 by suitable conducbe shaped,and are good heat conductors so. 'as to conduct away the heat generatedin the portions of part 11 in contact with the electrodes; Thispermits-of the part 11 being heated to a ter extent in the portioncentrally between the electrodes, and the electrodes and part 11 me beso arranged that the part wi l he heate more at the portion thereofwhere shaping is to occur. With this end-in view, the electrodes 7 and Bcould-be given special shapes to correspond with the particular part tobe operated upon. For shapin a flat bar, as shown, the electrodes 7 an 8would be straight bars of rectangular cross-section between which thepart 11 would extend.

The urran ment just described effects the art 11 when a heating currentis passed t .ercthrongh. To shape the part 11, a suitable die 12 islocated between block 5 is used for t e conduction of the heatingcurrent. After the part 11 has been sufficiently heated, the block 5 ismoved toward the lower block b any suitable means (not shown), and theormer 14 forces the part 11 against the die 12 and bends the part 11 toconform thereto. As shown in the drawing, a right-angled bend is givento the part 11, and'this die and former arrangement is used in bendingcore pieces of silicon steel for receiver cores.

\Vhile a die 12 and former 14 are illustrated, obviously a similararrangement could be used for punch and die work, a punch taking theplace of the former 14 and a suitable die to cooperate therewith beingused in place of the die 12. In this event, a suitable outlet would beprovided for the portions punched out from the parts operated upon. Thedie and former may be formed entirely of, or faced with, any suitableins.- lating-material if desired.

In use either for punch or press work the parts 11 would be heated bythe asage'of the heat current therethroughand operated upon directly assoon as suflicientl heated, and such operation might take p ace evenwhile the heated current was passing therethrough.

\Vith the construction illustrated, it is also possible to open theheating circuit through the part 11 by the act of shaping the same. Asshown in Fig. 1, the ends of the part 11 are not held against upwardmovement duringibending. When the part has been heated su eiently, thecentral portion of the part 11 between the electrodes 7 and upon by theformer 14 in cooperation with the d'ie'12, the former 14 and die 12being so shaped as to give a right-angled bend to the part beingoperated upon. The ends of the part 11 are raised out of contact withthe electrodes 7 and 8 in this operation and thus serve to automaticallybreak the heating circuit.

\Vhat is claimed is:

1. An attachment for metal shaping machines having a pair of relativelymovable electrode-holders, comprising a block for engagement with one ofsaid electrode-holders, an electrode carried by said block, a secondelectrode carried by said block and insulated from said first electrode,a second block for engagement with the other of said electrodeholders,and coiperating former elements; certain of said former elements beingass0 8 is operated ciated with one of sa.. blocks and other of saidformer elements being associated with the other of said blocks.

elements, one of said former elements being carried by one of saidblocks'and another of said former elements carried by the other of saidblocks.

3. An attachment for electric-welding machines having a pair ofrelatively movable electrode-holders comprising a conducting block for'engagin one of said elwtrodeholders, an electrofe on said block andconductively associated therewith, a second electrode carried by saidblock and insulated therefrom, a second conductin block for en agementwith the other of said electrodehol ders and conductively associatedwith said second electrode, a die insulated from and carried by saidfirst mentioned block between said electrodes, and a former elementcooperating with said'die carried by block and insulated. therefrom.

4. An attachment for electric-welding machines havin a pair ofrelatively movable elcctrode-h01 ers comprising a conducting block forengagement with' one of said electrode-holders,an electrode on saidblockand conductively associated therewith, a second electrode carried bysaid block and insulated therefrom, a second conducting block forengagement with the other of said electrode-holders and conductivelyassociated with said second electrode, and cooperating former elementsin non-conductive relation to said electrodes, one of said formerelements being carried by the first mentioned block and another of saidformer elements being carried by the other of said blocks.

5. In an apparatus for shaping parts and the like, the combinationofmeans for heating said part, and means whereby the shaping of said partdiscontinues the operation of said heating means.

6. In an apparatus for shaping parts and the like, the combination ofelectrical means for heating said part, and means whereby the shaping ofsaid part discontinues the operation of said electrical heating means.

7. In an apparatus for shaping parts and the like, the combination ofelectrical heating means a circuit therefor, and means whereby theshaping of said part opens the circuit of said heating means.

said other 8. In an apparatus for shaping conduct- 10 ing parts and thelike, the combination of electrodes between which the part to be shapedis cuit includlng said electrodes and the part to be shaped therein, andforming means to shape said part, the operation of saidforming meansserving to remove said part from at least one of said electrodes tobreak thy heating circuit therethrough. 10

In Witness whereof, I hereunto subscribe my m me this 31st day ofOctober, A. D. 0 1916.

WILLIAM RIEcKiiw

